- Fix Team Synergy calculation to use normalized canonical elements and paths across all 13 languages
- Fix showcase card, optimal relic builds, and LC dropdown path filters in non-English languages
- Add data-i18n and translations for quick commands and GM console greeting
- Update filter dropdown option text on language switch
- Add test-gay branch to GitHub Pages deployment workflow triggers
- Make nav-tabs sticky under header so menu navigation is always accessible while scrolling
- Add branch indicator in browser tab title ([test-gay] GaC-Srtool...)
- Add dynamic tab switching updates preserving branch prefix in browser title
- Add branch badge in brand header and right-aligned branch pill in navigation tabs
- Add scripts/sync-branch.js and version.json for automated branch detection
- Implement authentic in-game HSR attributes panel with official icons, 3 sections, and Base + Extra = Total layout
- Overhaul relic slot picker modal with spacious tabbed layout, quick meta builder, and visual set selection
- Fix signature Light Cone IDs and optimal relic sets/stats for all characters in Auto Relic & E0S1/E6S5
- Remove redundant avatar carousel switcher from character detail modal
- Add comprehensive 13-language localization support